Sash-lock.



No. 721,983. PATENTEDMAR. 3. 1903.v 0. WALL.

SASH LOCK.

APPLICATION FILED AUG. 16. 1902.

H0 MODEL.

UNITED STATES PATENT OFFICE.

OSBORNE \VALL, OF NEWV PLYMOUTH, NEW ZEALAND, ASSIGNOR OF ONE-THIRD TO ROBERT CLINTON HUGHES, OF NEIV PLYMOUTH,

NEW ZEALAND.

SA S H LO 0 K SPECIFICATION forming part of Letters Patent No. 721,983, dated March 3, 1903.

Application filed August 16, 1902. Serial No. 119,922. (No model.)

To all whom it may concern.- Be it known that I, OSBORNE WALL, a subect of the King of Great Britain and Ireland,

residing at New Plymouth, Provincial District of Faranaki, New Zealand, have invented certain new and useful Improvements in Sash-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

My invention relates to looks for sash, blinds, easements, and the like, and has for its object means for automatically causing a spring-actuated bolt to drop into its seat, means to temporarily lock the window in open position, and means to permanently lock the bolt against displacement, also means to prevent the cutting of the bolt by inserting a saw between the abutting edges of the locked parts.

Referring to the drawings, in which like parts are similarly designated, Figure 1 is a perspective view of one form of my device. Fig. 2 is a vertical longitudinal section thereof. Fig. 3 is a horizontal section showing a modification, and Fig. 4: is a perspective view of a keeper capable of being used with my lock.

I form a casing 6, of sheet metal, preferably, though not necessarily, square in crosssection, for the reception of the spring-actuated bolt 8. The forward portion of this casing where the bolt passes through it is turned down to form a collar 7 as an abutment for one end of the spring 16 and through which the bolt can freely pass. The bolt 8 is reduced in size at one end and is secured to a knob 9 or other suitable finger-grip by means of the pin 10, passed through both the grip and bolt. The outer larger end 13 of the bolt carries a loose collar 11 on its rounded portion 12 and is also providedwith a recess 14, in which is journaled a roller 15. Between the enlarged portion 13 and the collar 7 and per and lower sash or just between the abut-f ting edges of casement-windows, and the roller 15 taking into a recess in the upper sash or into a thimble suitably countersunk therein.

Along the side of the casing 6 and parallel with the main bolt is an auxiliary bolt 21, slidable through straps 22, also formed in one piece with the base-plates, the object of which is to lock the lower sash in relative position to the upper sash when the window is partly open to prevent the further opening of the window.

The operation is as follows: The plate 20 and depending portion 19 being screwed to the lower sash, the bolt engaging the recess or thimble opposite it in the upper sash, and

the collar 11 across the meeting edges of the two sash, to open the window the fingergrip 9 is pulled to the left, Fig. 2, compressing the spring 16 and withdrawing the roller 15 from its recess. The lower sash is slightly lifted and the finger-grip released. The roller 15, being held by the spring 16 against the side of the upper sash, is free tobe moved up. To close the window, the uppersash has simply to be pulled down. The roller 15 will drop into its recess and the hasp 17 take over the staple 18.

It is desirable when leaving a house for an extended time to securely lock the windows, and to this end a padlock is passed through the staple 18 and locked. A saw insertedbya burglar between thetwo sash for the purpose of sawing off the bolt 12 will engage a rotating collar 11 and simply rotate this collar instead of cutting through it and the bolt.

When applying my device to casementwindows, double doors, and the like structures, the depending hasp is dispensed with and the staple is secured to the sides of the casing 6 and embraces the finger-grip, so that when the padlock is inserted between the end of the finger-grip and the staple the bolt cannot be pulled out of its recess.

Instead of a roller 15, as shown in Fig. 2, I may use a ball 23, as shown in Fig. 3, inserted into a recess 24 in the ends of the bolt and the edges 25 of this recess crimped around the ball 23 to prevent it from dropping out. In conjunction with such a device I use a keeper (shown in Fig. 4) having a long curved bearing-track 30, over which the roller or ball can ride and readily drop into the recess 31.

I have shown the casing, plates, and straps all made of one piece of sheet metal and prefer to so construct them; but they may be cast, if desired. By reason of the continual pressure of the bolt on the side of the upper sash or in the bottom of its recess it also acts as an antirattling device.

Having thus described my said invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. The combination with a bolt, of a rotatable collar thereon adapted to be placed across the meeting edges of the parts locked, substantially as described.

2. The combination with aspring-actuated bolt, of a rotating bearing element held in its end and a collar loose on said bolt, substantially as described.

3. The combination with the sheet-metal casing, of a spring-urged bolt therein, a finger-grip on one end, a depending hasp on said'finger-grip, a depending plate 19, a staple secured to said plate and passing through the hasp, a loose collar on the bolt and a bearing-wheel in the end of said bolt, substantially as described.

4. The combination with a casing, of a spring-urged bolt contained therein, a loose collar on and a wheel secured in the end of said bolt, and a supplementary bolt parallel therewith, substantially as described.

5. The combination with a sheet-metal casing, and a depending plate 19, of a staple secured in said plate, a spring-urged bolt in said casing, a depending hasp on one end'of the bolt. to take over said staple, a loose collar on and a Wheel in the opposite end of the said bolt, a supplementary bolt parallel to the main bolt, and held in straps forming one piece with the casing, substantially as described.

In testimony that I claim the foregoing as myinvention I have signed my namein presence of two subscribing witnesses.

OSBORNE WALL.

\Vituesses:

PHILIP F. LARNER, HENRY ORTH, J r. 

